Ventilation is usually associated with complex installation of air ducts, which stops most people who want to use it at home. However, quite simple and convenient ventilation systems with flexible air ducts have recently appeared that you can assemble yourself.
It is known that a person needs oxygen produced by green plants as a result of photosynthesis. If the air contains a sufficient amount of it, and the concentration of other gaseous substances does not exceed the norm, then such air is called “fresh”.
In addition to gases and water vapor, filamentous, dusty and other particles are in suspension in the air, and some of them are harmful to human health. Their maximum permissible concentration (MAC), measured in milligrams per 1
The freshness and purity of atmospheric air are maintained by nature itself due to the constant mixing of air masses, which is difficult in a confined space (for example, in a room), which forces a person to intervene in this process.
Each of us exhales an average of 23
The cost of the “Sirok” block is $
Services provided by specialists
CJSC “ENGINEERING OBORUDOVANIE” for drilling holes for supply valves, cost $
So, the total cost for a system with four supply valves and three anemostats was $
During the construction of any residential building, general ventilation is provided, usually limited to natural exhaust. In this case, the exhaust air is removed from the room through a common vertical channel, and instead of it, due to the pressure difference, atmospheric “flows” through windows and doors. Ordinary windows are breathable, even when closed, due to gaps and gaps in the frames, which is not the case with modern frames with highly sealed double-glazed windows, which greatly reduce airflow. If the apartment is stuffy or condensation forms on the window panes
One of them
This unit has maximum performance
Inlet connections on the front panel for connecting air ducts
BUT. Lid covering an unused branch pipe
B. Central spigot diameter 125
AT. Branch pipe with a diameter of 80
G. Spigot with valve and limiter for automatic maintenance of a constant air exchange rate
D. A spigot with a valve for automatic air flow control limits the flow of cold air into the bathroom
Everything seems to be simple and clear, but the device of such “own” ventilation usually requires additional installation of stationary air ducts. And
Let’s talk about the installation of one of these systems, which we chose because, in our opinion, you can do it yourself. The sequence of installation of the ABB Statvent ventilation system with forced exhaust and natural air inflow is demonstrated by the specialists of CJSC “ENGINEERING OBORUDOVANIE”. It is installed in
System Installation Recommendations
When mounting the fan unit, do not despair if one of the pipes is not used. The experience accumulated while using the system can suggest in which room it is better to install another anemostat.
When choosing a place for mounting the fan unit, please note that the shorter the length of the air ducts to the installation site of the anemostats and the closer it is to the vertical channel of general ventilation, the more efficient the operation of the entire system will be. It is better to place it away from the bedroom.
Install the supply valve next to the window at arm’s length, taking into account the fact that the path of the supply air from it to the outlet must pass through the entire room and be maximum. Make sure that the protruding part of the valve is hidden behind the curtain.
Place anemostats either in the wall (interior partition) at a distance of no more than 100
When laying the air ducts, do not twist, make the turns smoother so as not to increase the resistance of the ventilation network.
For the inlet valve, do not use a filter material denser than that specified by the manufacturer. This can overload the fan and reduce air exchange efficiency.
When joining two ducts, carefully seal the joint with self-adhesive tape.
This system provides a single air exchange in a two- and three-room apartment. From rooms where excess heat, moisture, odors are emitted (kitchen, bathroom, bathroom, pantry), exhaust air is taken through exhaust valves (anemostats), which are connected via air ducts to a centrifugal type exhaust fan unit. He also carries out the process of removing the “exhaust” air. Air flows from all rooms are combined in the fan unit and are discharged through the exhaust duct into the vertical duct of the general ventilation of the entire building or through the outer grille directly to the street. The power of the fan used limits the number of anemostats (not
Atmospheric air enters the apartment through the supply valve, which is mounted in the window or wall of the building. The diameter of the supply valve of the Kiv model can be 100 or 125
Drill a hole in the wall for the inlet valve with a hole drill of the appropriate diameter.
Install the intake valve body.
Insert the rock wool muffler supplied with the valve.
Install the diaphragm unit with a regulator and a filter (the opening angle of the diaphragm can be changed smoothly using a knob or cord). Then repeat the steps for installing the supply valves in the remaining rooms.
Remove the top panel of the fan unit, then remove the impeller (“impeller”) with the motor and fix the back wall of the unit at a distance of no more than 500 mm from the vertical channel of general ventilation.
Install the impeller with the motor in place and close the unit with the top panel.
Install a metal tip on the outlet air duct and lead it into the vertical channel of general ventilation, having previously drilled a hole with a diameter of 128 mm in the channel wall.
Carefully fill the gap between the tip and the hole with mounting foam to prevent air “sucking”.
The inlet area of this valve, and hence the air exchange, is manually adjusted using a two-bladed diaphragm. It can be opened and closed by turning the handle or using a special regulator with a cord. Fresh air enters the faster, the greater the difference in air pressure outside and inside the room. So, at a pressure difference of 30
Such a valve does not change the temperature and humidity of the supply air, which is no different from a conventional window. These room air parameters can be slightly changed only by selecting the diaphragm opening angle (for example, in winter by a small angle, and in summer
The system project for the apartment in question has the following features:
The exhaust fan unit is installed with nozzles towards the kitchen on the mezzanine 300
System care rules
Periodically remove and wash the filter element of the supply valve from settled dust, after turning off the ventilation. AT
Once a year, remove the fan assembly panel, then the impeller with motor, and clean the intake vanes. Never immerse the engine with the wheel in water! Inspect the impeller periodically to detect and remove fatty deposits in time.
Twice a year, remove the anemostats from the mounting sleeves and wash them with dish detergent.
The air ducts in the bathroom are located above the false ceiling, in the center of which an anemostat is mounted, and in the bathroom the anemostat is located in the partition on the side of the bathroom. The unused branch pipe is closed with a lid. Length of air ducts with a diameter of 80
Air exchange with minimal stagnation zones throughout the apartment is provided by four supply valves installed in each room and kitchen.
To prevent sagging of the duct, attach it with brackets to the ceiling.
Make a hole with a diameter of 85 mm in the upper part of the bathroom partition, pass the air duct through it into the bathroom and cut it with a margin of 5–10 cm in length with a sharp knife.
Insert the mounting sleeve into the air duct and fix it in the partition wall.
Install an anemostat at the end of the duct.
Provide a gap of about 20 mm at the bottom of each door to create natural ventilation.
Sheathe the air duct in the kitchen with decorative panels, such as gypsum board 10 mm thick, and finish them in accordance with the texture of the wall.
Make a door in the fan assembly guard to allow the front panel of the fan assembly and the impeller with the motor to be removed.
This is what the intake grille looks like from the outside.
Source: Ideas for Your Home Magazine#25